Variable speed-transmission gearing.



J40. MIOHAUDQ. VARIABLE SPEED TRANSMISSION GEARI l 9 1m :3 w? Lb- S d e m e m D...

I APPLIUATION FILED JUNBM, 1912. 1,973,775.,

3 SHEETS J; 0; MIGHAUD.

ARING."

VARIABLE swan TRANSMISSION GB mron FILED J HEB 14 Patented se ta, 191 s.

3 SHEETS-SHEET i To amwhom it I ingiis max J os sir-aw. "Mrohnon, or rdlf r .K site, n I it E. v

'-wrsmnmisfim msflsmsstwsesame.

assessment: messa e, Applicationfllzd June 1431912. smammoavss.

Patented Sept.',23, i913.

may aoncem it knownthat I, Jesters; O.-M1CHAUD, -Uiiit'ed' States, 3 residing =-at Forts-Kent, in the" county of Aroostobkand State of-Maine, haveinvented certain-new anchu'sefill. Improvements in Varie3b1e-Spsed- Tra smission' Gearing, of which the followa specification.

' This invention r'el' tes'to variable speed transmission geari'ng adapted to be usedon motor vehicles-and;particularly relates to ani-m-prov'einent' everthesti ucture shown-1n my earlier Patent, No. 993,869.;grantedMay 20,1911. r f yThe object of the present invention isto v the structure'illustrated in said prioru-patent Mui -b0; provide it transmission gearing Which-may be easily and quickly operated to effect a= change of ,speedwhen the vehicle is moving in' a tor- Wvard. direction, end iiOe'PI'OVidG means for reversingthe application of power from the driving shaft to the driven shaft A further object of thein'vention isto provide means whereby a-single actuating lever may he used for changing the speed or reversing the movement -of the driven shaft instead otosing'two-separate levers is used operatively'oonnecte'd of moving either the requiring two separate actuations.

A further object is to provide-aconstructielr-of this character in which-a single lever to an internal gear to shiftthe same in one direction, and ope "ativel'y' co-niiectedto a cone or series 0 spur gears to shift tlie'sar'ne'transversely to the direction of'rnovement'o'f the internal, gear so as to secure -a' coact ion bet-Ween the internat gear-and any one of the spur g'ears, means being provided whereby the actuating lever-may be guided initsmovement and the extent of its movmentlimited sons to secure the-proper coast-ion between the internal ordri engear and'the-driving or spur gear. i V

A further object. in this connectionis to provide means-for eliminating anyeh'ance gear beyond its'properiposition. when the lever is'epera-ted.

"and "showing in Other objects will-appear in the course 'of the following description. 1

Figure 1 is a longitudinal section through the housing incasing' the-'transmission'gearing,- the internal gear and its support being in section. Fig. side elevation of' the housing andthe lever for operating the transmission gearing. Fig. 3 front elevation of the transmission gearing, the housingbeing in section. Fig. Lis-afra'gmentary shifting member 1:9. 'Fi'g. his a detail plan iview of the sector for the 'lever and the connection to the geai-"shifting rod. Fig. 6 is a fraginentary; section "of i the member'- 26 showing the latch position. Fig. 7 is a perspective view of t-heshiftable "gear wheels, the lever for actu- Eating the same and showing'in dottedlines the internal 'gezir, the slide on which it is mounted and the connectionstothelever. Fig. 8 is a=plan vieW'of-the sector gear dotted 'lines various i positions of the'gear-shifting lever. Figs. 9,10, 11 and '12 are, din-grams illustrating the various positions .of the sl'iiftahle gears relative to the internali zear 'and' also showing the position of the lever corresponding thereto'Wit-h reference to the sector.

Corresponding and like parts are referred to in the *follovving description and indicated i-n"a1l the views of the accompanying drawin gs'by the same'reference characters. I As illustrated in the'accompanying drawings, my improved transmission gearin'g ls shown applied to a driven shaft 2 whiohis 'connected'bya universal joint 3 to a section Carried upon 5; in a dislolike supportot'a universal-mint. I I i-ng member 6. The universalqoint o is for 2 and the: purpose of permitting the shaft driving" orthe driven 19 11161 11 98? 6 'Wiuhit to TEIOVC vertically, the member 6. however retaining'a'vert1cal-pos1- ,tion. 'Garriedi upon bhememher .6 -and :sup-

detail: partly rin -section of the gear for holding the 1 slide in of shaftin'g ,4 which: is geared with the run- 1 the driven shaft by means N am:

ported thereon in any suitable manner is an gethez' in any suitable manner. The anannulus car 'ying at its edge the internal nulus 2 1 is attached in any suitable inangear 8. This internal gear is sh" 11 be: net as by bolts to laterally disposed vertiing bolted by bolts I) to the dis lze ine'm eel bars 26 moving through guides 27 can 5 her 6, but it might be su perte-d thereon or pied by the side walls of the section 2201' on the annulus in any suitable manner; the gear case; The lower ends-of the bars The drivin shaft is mounted. in fixed are shew'n as formed withindentations hearings in alinenient with the shaftsection .28 and the lower guides 27 are shown as 4. The inner end of the shaft 10 is many provided with spring pressed pins :29 which 10 sided and supports upon it the gear wheels I engage in these depressions and act to yield- 11, 1'22, 13 and the clutchmei'nber which ingiy hold the slide formed by the inemmeshes with or otherwise engages with it here 26 and the annulus 24 in any adjusted clutch member 14 carried upon the disk 6. position. v i i As illustrated, these clutch members 14 anti The meanswherebj the; annulus 24 carry- 15 15 are formed like gears with radially proing the internal gear may he vertically' jeeting' intermeshing teeth, but I do net shifted so as to raise or lower the internal wish to be limited to this as any form 0f gear to bring it into engagement Withany clutch members may be used. I one of the gears 11, 12, 18 and 19,'is as fol-- Formed between the clutch member 1 lows: Mounted upon the frame beam 30 of 20 anal the gear Wheel 13 is an annular groove the machine or in any suitable manner a 1'6 miepted to have engagement with :1 gear shaft 31 which extenas laterally e116. enters. shifting rod 17. This gear shifting Foal has an extensien of the gem" ense- 22; This shaft en angfalei'ly extending fork which enters oarries a radially projeeting arm 532, seen the annular groove 16. Inasmuch as the in dotted lines in Fig. 2, and this am at its 25 gear Wheels 11, 12,13 and 15 fire all eeninnerent'i is pivotally connected to an enguh nected to each other either by being made ler link 33 whose lower end is pivotelly con" integral. or being mounted upon it sleeve neat-ed to the adjaeent bar 26 The shaft 3] surrounding" the many sided terzninetien it is connected as will be hereafter described 02 the shaft- 16, it will be obvious that a WP to 2. level: 34 and it will be olivimis tlnit when so eipioeat. n of the'g'eer shitting reel 1'? will the shaft 81 is rotated in one direction or to shift the cone of gears 11., 1% i3 anti the ether by the lever, the slileTiormed b t" e clutch member 15 longitucline 1y spin. th annulus 24 and the bars will be ti shaft 10, longitnclinally with. z-"eter- 5 raised 01' lnw md, enee to the internal gear 8 Fin enter to nroviole "for a longitudinal re- Mennted upon the ree 1? in pros mity E0 cipmention f the .i- Wheels 11, '12, 13 the fox-ks 18 is a spur Wile/ i not}. the elutcfi in iles snrl the spur plat meshes with gen; 18. will i i it '19}, Ecomiect the e2; remit of the ni1ift-. l; the 11 is the la gest the v n red ii" is :1 bell crank lever which is 13 the smallest, and; 1th. gear. 155 p voted at 36 upen a down'e'u'dly projeetmecliate lft will he nnoierstoec Y hut) 3? extending downward fromthe means erepi'ovil i for shifting-the beating e-f the shaft- 10. The shaft 31 can tl'ierehy s ties at its extremity a, seller 38 having lat and the clutch mei'nbe ly projecting pins and mounted are also pirevideol for vthese gains In it "ring-like member 40 lnteinel 8. I w the ee 34, The levee egg-like ll imfi soeizet CHIP me ion 30 e real 1e pi; "s end 1 tn the emit of the bell. wank leverillustrates in Fig. 4:. Inasmuch the ie-until Nil-'31} the gins 3's, it will he the lever has'not only a movethe teem-e been) 30, but J o limes nievement transdil'l'i'x; beam, emit will 'beseen sh lt section eteumle-it lay i 43y. v .lCl'l bolted one section 0'3; '25: which incleses the annulus i of the 5 ease (err of the "in section of the slotted liulo tl *ough i projects and Winn a, su'ppo, for 5; 1e roll k "Ii o0.

1 i and nee ill h ll MAE! h or pull. upen the ro jttfi,

he bell. eranit leverand shifting tail 1'? act to shift i 7 It will furhe 36 and lete't'sziiy it will movement which will act these this transverse movement ex moved gamers a to simultaneously shift the slide formed by versely in'the segment so as to engage in the annulus 24 and the hers 26 and simulone or the other of the sockets 48, 49', 50 or 'taneously shift the transmission gears. .51. or into the socket 47.

Mounted upon the-beam- 300v in any other The neutral position of the parts, that is, suitable manner", is a segment designated the position wherein all the gears o the generally. 44, which segment is so cone l cone are disconnected from the internal gear,- stru'cted as to provide for a movement of is that shown in Fig. 9. Fri-this os'ition of the lever 34 intwo directi .is. The form of the lever, the gear 13 is opposite't e internal this segment is illustrated particularly in gear. Now if the lever be rotated tothe left, 'Fig. 8. .It will be seen that the segment; I the shaft 31 will be rotated, drawing the-inextends parallel to the beam 30" and also'external gear downward and into engagement 7o tendsatright angles to the beam. The l with the gear 13 (see Fig. 10). In thisfpoment is formed With-an opening through sition of the parts the speed of the she 2 which the lover projects. One- Wall of this is'iuuch reduced relative to the speed of thej opening isstraight as at 46 for a: greater shaft 10. To more from the slow speed to portion of its length, but adjacent to the the next higher speed. thelever is shifted beam 30 this walla-6 is laterally ollset as back to its neutral position then shiftedat 47. The opposite wall of the opening. along the neutral line to a position oppo however, is stepped so as to provide a ser es site the ocket-til. This brings gear 12 op of sockets 48, 49, 50 and 51, the socket-l8 positc the internal gear, and-when the lever being immediately opposite the offset. poris shifted into the socket. 4-9, the shaft 31 is 8 tion 47 of the wall, the socket 49 heing'less rotated shifting the internal gear 8 downin depth than the socket 483, the so 'ltct it) ward into mesh with gear 12. thus givingthe being less in depthth'an the socket 4-9. and second 'specd. 'lo shift to the nexthigher the so ket 5'1 being less in depth than the speed, the levcr is shifted hackto the neutral socket 50, that is, the walls of these socket-s i line and then sl'iit'ted latera ly until it is define extensions of the opening 45 adapted opposite the socket 30 as in Fig. 11. This to receive the lever 34 and the extensions of brings gear llv opposite the internal gear. this opening getting graduallyshorter from and when the lever is shifted into the socket. the soc'k et ls' to thesocket' 51, the socket 551 50, the shaft 31 rotated to shift the interbeing located at the outer extremity of the nal gearinto mesh with the gear 11. thus segment. It will be seen that the outer providing for the third speed where the Walls of these sockets 43, 49, 50 and 51 form spccdot the shaft 2 is nearly that o? the stops limiting the throw of the lever in that shaft 10, as in Fig. 19.. To sccure now a. direction of the stop, and that the wall 47 direct drive where the speed of the shaft 2 also forms a stop limiting the throw of the lever iii-that direction.

It is to be particularly noteddhat a movement of the lever para-Hello the length (11" the beam 30 will not act to either push or pull upon the rod 4?) and thus will not act forward and throws the clutch nieinhcr l? to shiftthe gears ll. 12. 1?). l5, and I). but. into engagement with the clutch member 14. that this merchant of the lever will simply In order to rcverse the direction otirolation act to raise or lower the internal gene 8. ol' the shaftv 2. it is hecessary to bring the the lever is shitt d back to the ncutral line. thus raising the 'lTliQlYlfll gear to a neutral position. A further movement oi the lever into the socket 5i throws the cone of gears A movement of the lever upon the pivot pins spur whecl 1.9 into ienqagement with the ally, the cone o'l transmission gears will he 39 and at right angles to the/plane of the internal gear. To do this, the lever is beam 30 will not act to shift. the internal brought. back to the-- neutral position I gear but willactto operate the bell crank shown in i i-9;. 9. thus shifting gear 133 and thus shiftthe cone of transmission opposite to the internal gear and en gears, andthat if the lever ill is not only the lever is shifted into the" socket 4T, moved approxiinalrl v parallcl to the heani sockct being relat vcl; I 30 but is also moved at an ai'iglo thereto so being only a small mo enicnt'required m as to shift the lower end of thc'lnver latcr- 1 order to shift the internal gear mto mesh l with the teeth of the spur gear 19. lt isshifted to correspond with the shitting of l to be particularly noted in this connection the internahgea'r. Thus to raise or lower 1 p the internal gear, the lever is shiftcdin the i-ectly from the internal gear and thusgoon direction of the length of the opening; 45 slitute'the firstor slowest specd. butit may in the segment Hand to shift the cone of also be driven through the spur gear an transmission gears so to bring one or the l thus be used to reverse the shaft. other of'thetransmission gears into engage- It will be of courseunderstood that the125 ment with the internal gear; or to bring the embodiment-of the invention illustrated in. clutch member 15 into'engagement with the.- l the drawing may be modified in many ways clutch member 16, the lever is shifted trans l without departing from the spirit thereof,

shall he the same as that of the shaft l'tl. 100.

shallow and thege. 11b I that the gear 13 may not only'be driven d1- and that While mounted upon the I have described my variable speed transmission gearing as being applied to use with an automobile, it may'be applied in any other circumstances for which it may be found adapted. It will also be obvious that I may increase or decrease the-number of spur gear wheels and thereby succeed in securing either a three speed forward transmission or a five speed forward transmission, and this spirit of the invention.

Having described myinvention, what -I claim is:

l. A transmission gearing including a" t, an internal driving shaft, a, driven sha series of gears having different diameters and shiftably other shaft, a lever, a rock shaft operatively connected to the internal gear, said lever being pivotallymounted upon the rock shaft for movement in a plane coincident to the rock shaft and engaging said rock shaft for rotative movement therewith, and connections between the shaft, a

lever and the cone of gears whereby the latter maybe shifted upon a rocking of the'lever in-a plane parallel-to the rock shaft.

2. A transmission gearing including a coacting sh aft pivotally-mounted at one end and movable in one plane with relation to the named shaft, an internal gear pivotally mounted upon the first named shaft and mot-able therewith, a done of gears shiftably mounted upon the first named shaft and movable in a plane at right angles to the plane of movement of the internal gear and second named shaft, and commonmeans for shifting the second named shaft and inone plane. a cone of .gear carried thereby,

- carried by said .means or slide and t ternal gear in one plane and the cone of gears in a plane at right angles thereto.

13. A transmission gearing including a driving shaft, a driven shaft, an internal gear carried by" one shaft and movable in gears shiftably mounted upon'the other shaft and movable in a plane at right angles to the plane of movement of the internal gear, common means for shifting said internal gear and. the cone of gears in planes at right angles to each other, and means for detachably locking said gears in shifted position.

4:. A trans-missile. gearing including a driving shaft, a driven shaft, an internal slide supporting the internal gear and the driven shaft, guides slide, latching devices detachably engaging said yielding slide to hold it in adjusted, position, a cone of gears shiftablydhounted on the drivingslr and 1novable in a plane at right angles to the plane of m n: e t the inte l gear, and

linul'taneonsly the said e cone of in places at right engles to other.

without departing from the- 5. A transmission gearin including a driving shaft, a driven shalt, an internal gear carried by one shaft and movable in one plane, a slide surrounding the internal gear, antifi'i'ction devices disposed between the slide and the internal gear, a. cone of gears shiftably mounted upon the other shaft and movable in a. plane at right angles to the plane of movement of the internalgear, a casing surroundin said gears, a shifti member extending hrough saidcaaing an enga 'ng said cone of ears, a gear mounte upon said shifting mom or and; m engagement with one of said last named gearaand common means for shifting'said slide in one plane and shifting said cone ofgears ins plane at right angles thereto. i

6. A transmission driving and a driven s carried by one shaft and shiftable in one plane, a series of stepped gear wheels carried by thev other shaft and shiftable thereon in "a plane at right angles to the plane of movement of the internal gear, a lover, a rock shaft connected thereto and operatively connected to the internal gear, a shifting rod operatively connected to the stepped gears, a bell crank lever connected to the shifting rod, and connections between said bell crank and said lever.

7. A. transmission gearing including a drivingshaft, adriven shaft, the :end of the driven shaft adjacent the driving shaft being freely movable in one plane, an internal gear carried by said driven shaft, a slide carrying said internal gear, a series pf stepped gear Wheels shiftably mounted-upon the -driving shaft and having movement in a plane transverse 'to the plane of movement of the internal gear,-a lever pivotally mounted for movement in two directions, a rock shaft operatively engaged by the lever upon a movement in one direction and operatively connected with said slide to raise and lower the same upon a rotative movement of the rock shaft, a shifting rodengaging said gear caring including a Wheels, a bell crank lever connected to l'ne aft, an internal gear drivingshaft, a driven shaft, the latter bcmg pivotally supported at one end and free to 'inbve in a vertical plane at the other end. an internal gear carried at the free end of the driven shaft, a series of stepped gear Wheels ml'lunted upon-tile driving shaft and longitudinally shiftable to bring any one of the Wheelsinto'orout of allnement with the internal gear, a rock shaft having an arm operativelv eonnected to the internal gear to raise or lower the same into or out of engagsment with the gear Wheels, a lever pivotally mounted upon the rock shaft for In testimon whereof I af'fix my signature 1 movement with the rock shaft or independin presence 0 two witnesses.

ent movement in a plane parallel thereto, 4 said lever extending below the rock shaft, a shifting rod connected to said gear wheels and extending parallel to the driving shaft, a bell crank connected to the shifting rod, and a connection between the bell crank and thelower end of the actuating lever.

JOSEPH 0. MIQHAUD. 11. 5.

\Vitnesses HENRY "W. NADEAU, 111mm R. CYR. 

